Learn More About the IAAO...

IAAO is a nonprofit, educational, and research association. It is a professional membership organization of government assessment officials and others interested in the administration of the property tax. IAAO was founded in 1934, and now has a membership of more than 7,000 members worldwide from governmental, business, and academic communities.


IAAO offers a number of educational programs in a variety of formats to help members gain additional education.

  • 14 courses that are five days in length
  • 11 on demand online workshops. 
  • 26 one to three day programs.
  • 8 One-Day Forum
  • 6 designations

See More about Education​


  • Research Library of 18,000 books, articles, government documents, reports, and conference proceedings as well as various directories and subject guides on appraisal and assessment. 
  • IAAO magazine, journal, and E-news following issues of interest to the industry.
  • Free consulting service for jurisdiction to  bring a fresh perspective to assessment problems. 

See More About Resources



IAAO offers numerous programs allowing members to network, learn about industry issues, and find out about new products from industry partners.

  • International Conference on Assessment Administration
  • GIS / CAMA Technologies Conference
  • Annual Legal Seminar
  • Preparation and Trial of the Property Tax Assessment Appeal Seminar
  • International Research Symposium

See More About Networking​


Membership in IAAO can help you continue further your career, pursue leadership opportunities, and make a difference in your community.

See More About Membership


IAAO offers a Career Center offering employers and job seekers information and listings about current openings in the industry.

Enter Career Center